linux-kernel - [PATCH 04/11] fbdev: da8xx-fb: Drop unnecessary static

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Date:   Sat, 15 Jul 2017 22:07:39 +0200
From:   Julia Lawall <Julia.Lawall@...6.fr>
To:     Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Cc:     keescook@...omium.org, kernel-janitors@...r.kernel.org,
        linux-fbdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 04/11] fbdev: da8xx-fb: Drop unnecessary static

Drop static on a local variable, when the variable is initialized before
any possible use.  Thus, the static has no benefit.

The semantic patch that fixes this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@bad exists@
position p;
identifier x;
type T;
@@
static T x@p;
...
x = <+...x...+>

@@
identifier x;
expression e;
type T;
position p != bad.p;
@@
-static
 T x@p;
 ... when != x
     when strict
?x = e;
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>

---
These patches are all independent of each other.

 drivers/video/fbdev/da8xx-fb.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -u -p a/drivers/video/fbdev/da8xx-fb.c b/drivers/video/fbdev/da8xx-fb.c
--- a/drivers/video/fbdev/da8xx-fb.c
+++ b/drivers/video/fbdev/da8xx-fb.c
@@ -1341,7 +1341,7 @@ static int fb_probe(struct platform_devi
 {
 	struct da8xx_lcdc_platform_data *fb_pdata =
 						dev_get_platdata(&device->dev);
-	static struct resource *lcdc_regs;
+	struct resource *lcdc_regs;
 	struct lcd_ctrl_config *lcd_cfg;
 	struct fb_videomode *lcdc_info;
 	struct fb_info *da8xx_fb_info;